
Business Systems
Business Systems (UK) Ltd is headquartered at BSL Group, 2nd Floor, Cannon Green, 27 Bush Lane, London, EC4R 0AA

CardEasy
Ealing Studios, Ealing Green, London W5 5EP. United Kingdom

Netcall Technology Plc
Suite 203, Bedford Heights, Brickhill Drive, Bedford, UK. MK41 7PH

Puzzel
22 Tudor Street, Blackfriars, London EC4Y 0AY.